If Grounded

Questions & Answers
1

Hello everybody! I want to make a jumping function, and I can jump, but I am writing an if grounded variable. My code so far is:

using UnityEngine;
using System.Collections;

public class jumpAfterTest : MonoBehaviour 
{   
	public bool isGrounded = true;		//specifies if touching gameobject floor_big
										// in this case, it specifies is touching ground
										//therefore, mole can jump

	public float jumpheight = 3500;


	void update()
	{
	
		isGrounded = false;
	}



	public void JAT ()
	{
	
	
				Debug.Log("Me is JAT");
				//add effect here (old note)


		if (isGrounded == true){
			GetComponent<Rigidbody>().AddForce (transform.up * jumpheight);
		
		}
		//need if grounded variable (old note)(not working)
	
	}

	void OnCollisionEnter (Collision col1) 
	{
		if (col1.gameObject.name == "floor_big") 
		{
			 isGrounded = true;
			//Destroy(col1.gameObject);
		}

	}





}

I can jump, but I can also double jump. And triple jump, quadruple jump, quintuple jump, etc. Basically I can fly. I want to limit to one jump, like in real life. I don’t know why my script isn’t working. Please help out. Thanks! By the way, I am relatively new.

2

Remove

isGrounded = false;

from your Update() method since it is setting you to be not grounded each frame which is allowing you to have multiple jumps.

And place that isGrounded = false; after your line:

GetComponent<Rigidbody>().AddForce (transform.up * jumpheight);

inside your JAT () method.

3

You should add “isGrounded=false” after using addForce.

if (isGrounded == true){
         GetComponent<Rigidbody>().AddForce (transform.up * jumpheight);
         isGrounded=false;
     }